PORSCHE 911 MOT Pass Rate
91.6% of 21,528 PORSCHE 911 MOT tests pass.
The 911's pass rate of 91.6% is in line with the average across all PORSCHE models, at 91.7%.
The PORSCHE 911 passes its MOT 91.6% of the time — well above the national average for cars, which sits at 78.3%.
Pass rate by vehicle age
Pass rate declines noticeably with age, from 98.2% at 3–6 years to 87.8% at 15+ years.
| Vehicle age | Pass rate | Tests | Average mileage |
|---|---|---|---|
| 0–3 years | no tests recorded | 0 | no reading |
| 3–6 years | 98.2% | 1,831 | 21,799 miles |
| 6–10 years | 97.3% | 4,308 | 26,850 miles |
| 10–15 years | 94.8% | 3,231 | 46,881 miles |
| 15+ years | 87.8% | 12,158 | 78,970 miles |
Common MOT failure reasons for the PORSCHE 911
The most common reason the PORSCHE 911 fails its MOT is lamps, reflectors and electrical equipment — present in 59.1% of failed tests, most often logged as "not working".
| Category | Share of failed tests | Example |
|---|---|---|
| Lamps, reflectors and electrical equipment | 59.1% | not working |
| Brakes | 18.3% | excessively corroded |
| Tyres | 17.1% | has ply or cords exposed |
| Noise, emissions and leaks | 16.8% | Lambda reading after 2nd fast idle outside specified limits |
| Suspension | 15.1% | ball joint dust cover no longer prevents the ingress of dirt |
| Body, chassis, structure | 11.2% | constant velocity boot split or insecure, no longer prevents the ingress of dirt |
| Visibility | 10.6% | does not clear the windscreen effectively |
| Identification of the vehicle | 4.6% | does not conform to the specified requirements |
| Steering | 3.0% | gaiter missing or no longer prevents the ingress of dirt |
| Seat belts and supplementary restraint systems | 2.7% | warning lamp indicates a fault |
Related PORSCHE models
- PORSCHE MACAN — 94.8% pass rate
- PORSCHE CAYENNE — 90.5% pass rate
- PORSCHE BOXSTER — 87.2% pass rate
- PORSCHE CAYMAN — 91.6% pass rate
- PORSCHE PANAMERA — 92.6% pass rate
- PORSCHE TAYCAN 4S 93KWH — 95.2% pass rate